From: Breakage risk of different sacroiliac screws in unilateral sacral fractures a finite element analysis
Ligament
K(N/m)
Number of springs
anterior and capsule
700
27
posterior (inner layer)
1400
15
intro-osseus
2800
8
sacrospinous
9
sacrotuberous
1500
superior pubic
500
24
arcuate pubic